[Libmesh-users] Blood Vessel Adaptive Mesh

[Caleb M P. <cal...@ut...>]

Hello all,

I'm a newer user to lib mesh and would like to attempt to incorporate it in
my research. I am looking to take a list of objects (cells that make up a
blood vessel) and add nodes and elements to the mesh over the entire
domain. These new nodes/elements would act as a boundary for blood flow. So
I would be solving incompressible 2D flow over the whole domain with the
new elements acting as a boundary (the wall of the vessel). The vessels
would move every time point so I would delete the new nodes at the end of
every time point and add the updated positions as new nodes.

I'm wondering if this is thought to be feasible or if the manipulations to
the mesh at every time point would be extremely computationally expensive.

I am trying to implement this in a very simple case, but whenever I try to
add nodes wherever these cells are in the domain, I get an error "Error,
cannot insert node on top of existing node." which I am certainly not
adding a node directly on top of an existing node. I've looked through some
of the documentation but cannot seem to make sense of my issue.

Best,
Caleb